CHOPPING:
Below video demonstrates chopping of glass fibers. With this particular machine, the fiber is traveling over a metal roller (press roller) and then between it and a neoprene roller. This helps to feed the fibers into the cutting area.
The actual process of cutting takes place by the means of the metal blades which are mounted to a third roller. The blades press down on the fibers which are now on the neoprene roller and the fibers are broken. This implies, the term “cutting” is technically incorrect. In this example the fibers are broken.
The length of the broken fibers are determined by the distance between two blades on the roller they are mounted to.
After the breaking of the fiber, the processed material will now fall into a bulk box which can hold around 1,000 lb of material, depending on the density and the length of the fiber.
You can click on both videos to see the process taking place.